See also:

• Science: Agriculture: Pests and Diseases  (244)
• Science: Biology: Botany: Plant Pathology  (117)
• Science: Biology: Zoology: Arthropoda: Entomology  (86)

• Asian Longhorned Beetle - Brief account of the introduction of this Chinese insect into North America, and with a list of the affected species.
• Brown Spruce Longhorn Beetle - Brief account of this pest of spruce trees, its growth, and means of control.
• Bugwood Network, The University of Georgia - Extensive resource on forest insects and related topics.
• California Oak Mortality Task Force - Task force focusing on the pathogen causing Sudden Oak Death disease through research, management, education and public policy.
• Dutch Elm Disease - Provides information on this disease caused by Ophiostoma ulmi, its host plants, symptoms and recommendations.
• Exotic Forest Pest Information System for North America - Database containing information on exotic insects, mites and pathogens with potential to cause significant damage to North American forest resources.
• Focus on Woody Plant Diseases - Information by host plant on diseases and damages affecting trees and perennial flowers from the University of Illinois Extension.
• Forest and Shade Tree Pathology - Online textbook, news and upcoming meetings of forest pathology.
• Forestry Images - Quality photographs of forest insects and disease organisms. Contains image search or browse by categories.
• Gypsy Moth - A short account of this caterpillar pest of maples, oaks and elms.
• Gypsy Moth in North America - Extensive information on the biology, impact, distribution and management of this exotic insect in North America.
• Insects and Diseases of Eastern Canada's Forests - An extensive collection of images and a variety of information on the main insects and diseases of the forests of Quebec and Eastern Canada.
• Invasive and Exotic Species of North America - Provides extensive information on all kinds of invasive species in North America.
• Iron Chlorosis in Trees - The symptoms, diagnosis and correction of this condition. [PDF]
• Iron Chlorosis on Trees - Provides information on this condition, the most susceptible trees and recommendations for treatment.
• Key to the Forest Insect Pests of Papua New Guinea - Allows the identification of the most important forest insect pests of Papua New Guinea and includes descriptions of insect signs, preventive measures, bibliographic references and a comprehensive glossary of terms
• Monitoring Sudden Oak Death - Created by the University of California's Sudden Oak Death Research Team, this site monitors the distribution of the disease.
• Oak Wilt - Information on this disease caused by the fungus Ceratocystis fagacearum, its hosts, symptoms and recommendations for control.
• Pine Root Rot: A Biocontrol System - Information on the use of the weakly parasitic fungus, Phlebiopsis gigantea, to prevent the attack of the pathogenic fungus, Heterobasidion annosum.
• Plant disease diagnostics (Minnesota) - Plant disease diagnostics by the University of Minnesota Extension Service. Mainly designed for plant disease problems in yards and gardens. It is based on visual observations of symptoms. It has a section on trees that might be useful in forestry.
• Problem: Galls - Provides information on these abnormal growths caused by insects and recommendations on control.
• Sedelmeier Forestry Research Fund - Provides funding for critical research into the causes, control, prevention, and the eventual elimination of some of the diseases that affect the trees of our forests.
• Tent Caterpillars - The Eastern tent caterpillar affects black cherry trees and other fruit and shade trees. The forest tent caterpillar infests hardwood trees such as sugar maple and oak.
• University of California Cooperative Extension: Sudden Oak Death Facts - Provides practical information on this disease including distribution, symptoms, prevention, quarantines and look-alike diseases.
• USDA Forest Insect and Disease Leaflets - USDA technical publications that address specific tree pests and diseases, including identification and control.